Question

A particle having mass m is projected wuth velocity u m/s at an angle theta with horizontal. Find out the torque about point of projection when particle was at

1. maximum height
2. just about to hit the ground​

Answer 1

Answer:

=rFsinθ=2Rmg=2gv02sin2θmg

τ=2mv02sin2θ

Answer 2

Answer:

please refer to the attachment above